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love history [14]
3 years ago
9

What are two scientific ideas that have changed throughout and why they have changed?

Biology
1 answer:
enyata [817]3 years ago
8 0
One is that the earth is shaped as a circle and two is that it is shaped as a square
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Help please! DNA Assignment
vovangra [49]

Answer:

DNA Replication:

Replicate the following strand of DNA:

Original DNA: A T G A A C CA T T C A G T A T G G

Complementary DNA:

Remember that the complimentary base pairs in DNA are Adenine-Thymine and Guanine-Cytosine, or A-T and G-C. This means that if the original sequence is:

A T G A A C C A T T C A G T A T G G

Then the compliment is (replace with the opposite base pairs):

T A C T T G G T A A G T C A T A C C

Transcription:

Transcribe the DNA to make an mRNA molecule

COMPLIMENTARY DNA:

mRNA Molecule:

So if our complimentary DNA (antisense stand) is T A C T T G G T A A G T C A T A C C then to transcribe, we basically create another complimentary strand, but for mRNA, we use Uracil instead of Thymine:

A U G A A C C A U U C A G U A U G G  

Translation:

Translate the mRNA into the corresponding amino acids.

mRNA MOLECULE:

AMINO ACID:

Using the DNA sequence provided, determine the amino acids.

Next, take each codon (3-base set) to the table and record the corresponding protein:

A U G = Methionine (start)

A A C = Asparagine

C A U = Histidine

U C A = Serine

G U A = Valine

U G G = Tryptophan

ORIGINAL DNA: A T G G G T C T A G C G A A A G A T

Complementary DNA:

mRNA DNA Molecule:

Amino Acid:

And we do it all again:

A T G G G T C T A G C G A A A G A T = original DNA

T A C C C A G A T C G C T T T C T A = complementry DNA

A U G G G U C U A G C G A A A G A U = mRNA

A U G = Methionine (start)

G G U = Glysine

C U A = Leucine

G C G = Alanine

A A A = Lysine

G A U = Aspartate

Explanation:

4 0
3 years ago
Please tell fast plzzzzzzz​
prohojiy [21]

Answer:

(a) and (d) are correct

Explanation:

AIDS is a disease that's usually transmitted by sexual contact and breast feeding.

8 0
3 years ago
Use the diagram to answer each question. How do volcanoes form at A?  
Andre45 [30]

Answer:

Volcanoes are formed at the divergent and convergent plate boundaries.  

<u>During a divergent plate motion, along the mid-oceanic ridge, seafloor spreading takes place. Here it is represented by location B. Due to this, the magma becomes extremely hot and exerts an upward pressure towards the seafloor</u><u>. </u><u>As a result of which the ocean floor slowly rises up forming sea volcanoes.</u> The eruption takes place and the lava forms and deposits on the seafloor, near and along the mid-oceanic ridge. As this region undergoes continuous spreading, so the crust comprised of these rocks slowly moves away from the ridge.

4 0
3 years ago
Which type of energy transformation is controlled by chloroplasts?
natulia [17]

Answer:

d

Explanation:

hope this helps

7 0
2 years ago
David brought home a leaf cutting from a plant. He potted the cutting, and it grew into a full plant. What can you conclude abou
Arlecino [84]
Uh...that it will have the same genetic makeup as the plant it came from? or that it's asexual? dont really know what u need here.
3 0
3 years ago
Read 2 more answers
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